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vol.16 issue4Correlations between growth variables and the Dickson quality index in forest seedlingsEvaluation of flooring produced from small diameters logs of Eucalyptus sp. clones author indexsubject indexarticles search
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CERNE

Print version ISSN 0104-7760

Abstract

LIMA, Israel Luiz de et al. Effect of fertilization on cell size in wood of Eucalyptus grandis Hill ex Maiden. CERNE [online]. 2010, vol.16, n.4, pp.465-472. ISSN 0104-7760.  http://dx.doi.org/10.1590/S0104-77602010000400006.

The use of fertilization in forest stands results in yield gains, yet little attention has been directed to its potential effects on the quality of wood produced. Information is scarce about the effect of fertilization on anatomical structures of older Eucalyptus wood. This work aims to study the effect of fertilization on tissue cell size of wood from a Eucalyptus grandis stand at age 21 years, the management system of which is based on selective thinning and fertilizer application at the start of the thinning season. Factors to consider include: presence or absence of fertilizers, two log positions and five radial (pith to bark) positions. Results led to the conclusion that fertilization significantly influenced only vessel frequency. Vessel element length was influenced by tree height. Fiber length, fiber diameter, fiber wall thickness, vessel element length, vessel diameter and vessel frequency were influenced by the radial position of the sample in relation to the log. A positive correlation was observed between fiber length, fiber diameter, fiber wall thickness, vessel element length, vessel diameter, ray width and radial position, while a negative correlation was observed between ray frequency and radial position.

Keywords : Forest management; wood anatomy; wood quality.

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